Subset dimensions of a caobj — subset

Subsets the dimensions according to user input.

Usage

subset_dims(caobj, dims)

Arguments

caobj: A caobj.
dims: Integer. Number of dimensions.

Value

Returns caobj.

Examples

# Simulate scRNAseq data.
cnts <- data.frame(cell_1 = rpois(10, 5),
                   cell_2 = rpois(10, 10),
                   cell_3 = rpois(10, 20))
rownames(cnts) <- paste0("gene_", 1:10)
cnts <- as.matrix(cnts)

# Run correspondence analysis.
ca <- cacomp(cnts)
#> Warning: 
#> Parameter top is >nrow(obj) and therefore ignored.
#> No dimensions specified. Setting dimensions to: 2
#> Please consider setting the dimensions to a lower value to speed up the calculation.
#> Recommended dimensionality: << min(nrows, ncols) * 0.2
ca <- subset_dims(ca, 2)